DEVELOPMENT OF OPTIMAL SUPERCRITICAL CONDITION IN THE CO2 AQUEOUS SEQUESTRATION OF SERPENTINE
Among greenhouse gases, CO2 is the major contributor to the global warming due to its abundance compare to other greenhouse gases. As a result, it is considered to be a primary target for reduction. The proposed CO2 removal technology in the present study is the one-step sequestration process that stabilizes CO2 in a reactor with mineral resources. The advantage of this technology is associated with its high stability and the total system is recognized as perpetual environment-friendly and CO2 removal method. Serpentine has been chosen as the feedstock mineral of carbonation due to its abundance and availability in Korea. Since the sequestration reaction preceded very slow, some kinds of method to increases the CO2 carbonation reaction should be developed. Size reduction and heat treatment was performed by increasing surface area due to improve reactivity. And aqueous solutions are also available to improve the reaction. In aqueous mineral carbonation for CO2 sequestration, high-pressure CO2 is injected into sodium chloride or sodium bicarbonate solution mixed with Serpentine to produce magnesium carbonate. The super-critical reactor for the aqueous CO2 sequestration was experimented, which examined carbonation. Based on reforming the reaction conditions (pressure, temperature, reaction time, and solution concentration), the most optimum condition for the aqueous CO2 sequestration was founded.
CO2 sequestration Serpentine Magnesium carbonate
Joonsoo LEE Lihua XU Hyungtaek KIM
Division of Energy Systems Research, Graduate School, Ajou University Wonchon-dong, Yeongtong-gu, Suwon, Korea 443-749
国际会议
第六届煤燃烧国际会议(The 6th International Symposium on Coal Combustion)
武汉
英文
724-726
2007-12-01（万方平台首次上网日期，不代表论文的发表时间）